Granted Patent
Utility
US 5,230,816 · App. 07/878,677
3,9-bis(dialkylamino)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecanes and stabilized compositions
Inventors:
Stephen D. Pastor, Paul A. Odorisio
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: May 5, 1992
Inventors
Stephen D. Pastor
Paul A. Odorisio
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.